• Journal of Service Research and Studies
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• v.4 no.1
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• pp.71-81
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• 2014

It is important for regional comparative analysis about economically active population ratio by sex and total economically active population ratio to a policy data of central and local government. Through the result of comparative analysis, Central and local government can use policies distinctively according to the region and keep the efficiency of detail policy application. This paper shows regional comparative analysis about economically active population ratio by sex for the Seoul metropolitan region, Gangwon region, Chungcheong region, Youngnam region, Honam region using the economically active population survey data in 16 cities and provinces. We used the survey of economically active population for 13 years from 2000 to 2012, we calculated total economically active population ratio and economically active population ratio by sex about the 5 regions. And we analyzed the relative ratio between economically active population ratio of male and female by each region, we also analyzed the results of regional comparative analysis by sex.

• Journal of Digital Convergence
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• v.19 no.11
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• pp.255-266
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• 2021

Investment demand for factory facilities has increased due to the balloon effect caused by housing price regulation. This study investigated the impact of the real estate market and macroeconomic factors on the bid price ratio of apartment auctions and factory auctions, focusing on the metropolitan area. To this end, we reviewed theories and previous studies on real estate auctions, and examined how macroeconomic variables affect bid price ratio of apartments and factories using the panel vector autoregressive model. It was found that the increase in the apartment bid price ratio increases as the participation in apartment auctions increases. However, as the factory bid price ratio increases, the factory bid price ratio does not increase, it was confirmed that the positive (+) relationship between the successful bid price ratio and the bid price ratioe does not exist, unlike previous studies. Based on the analysis results, it is suggested that the real estate market and macroeconomic factors should be considered for the stable operation of the related relevant auction system. This study has limitations in that it is limited to the metropolitan area. In the future, research that expands the scope of research to the whole country and provinces should be conducted.

• KSCE Journal of Civil and Environmental Engineering Research
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• v.31 no.5D
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• pp.719-726
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• 2011

The government intensifies screening criteria for the guarantee of reasonable bidding price and the prevention of low bidding price, however, the low tender rate still becomes an issue. This study analyzed the problems of screening criteria for the guarantee of reasonable bidding price, and then derived some major issues such as the restriction of decisive factors for initial construction cost, the rate of activities over five percent of surveyed price and the restrictive review criteria of inadequate activities. To solve thess problems, this study suggests an improved process model for estimating optimal bidding rate that can select a contractor with the guarantee of reasonable bidding price.

• Journal of the Korean Data and Information Science Society
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• v.28 no.2
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• pp.371-381
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• 2017

There has never been research on Chaos analysis using real estate auction sale price rate in Korea. In this study, three Chaos analysis methodologies - Hurst exponent, correlation dimension, and maximum Lyapunov exponent - in order to capture the nonlinear deterministic dynamic system characteristics. High level of Hurst exponent and the extremely low maximum Lyapunov exponent provide the tendency and the persistence of the data. The empirical results give two meaningful facts. First, monthly time lags of the correlation dimension are coincident with the time period from the approval auction start day to the sale price fixing day. Second, its weekly time lags correspond to the time period from the last day of request for sale price allocation to the sale price fixing day. Then, this study potentially examines the predictability of the real estate auction price rate time series.

• Journal of Labour Economics
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• v.29 no.1
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• pp.99-127
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• 2006

This paper examines the effect of the market power of firms in the product market on job creation, job destruction and net job growth. It uses the reconstructed establishment data in the Korean Annual Mining and Manufacturing Survey between 1982 and 2002. This paper shows that job creation has continuously declined since the late 1980s and the decline is common for both market-dominant and competitive firms. The effect of market dominance on job creation is negative, controlling the firm-characteristics variables such as firm size and firm age.

• Journal of Digital Convergence
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• v.18 no.2
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• pp.197-204
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• 2020

The purpose of this paper is to find the direction by analyzing the synchronization phenomenon and the change rate of apartment charter rate in Korea, Seoul, Busan, Daegu, Gwangju and Daejeon. For this purpose, this study used a total of 239 monthly data from January 2000 to November 2019 in Kookmin Bank housing statistics. In the correlation analysis, Korea showed the highest relationship in order of Seoul, Busan, Incheon and Daegu. Seoul showed a low figure of 0.3 without any distinctive features from other cities. On the other hand, Busan, Daejeon and Daegu showed high correlations. As a result of the regression analysis, Korea and 5 major cities were all moving in the same direction with positive(+) values. And Busan and Seoul responded significantly to Korea. In the shock response, Korea is most shocked by the change in Seoul. Daegu is relatively shocked by Busan and Daejeon. Seoul's charter rate has declined most strongly in the last three years. Therefore, it is time to be careful not to incur losses due to gap investment. If we look at the relationship between the charter rate and the sale price in future studies, we can better understand the Korean apartment market.

• Journal of Family Resource Management and Policy Review
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• v.25 no.2
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• pp.41-52
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• 2021

The purpose of this study is to examine how female labor force participation, family policies, and gender equality are related to fertility rate across countries. Multiple measures has been collected from various data sources(such as OECD, UNDP, and WVS) and the panel data set which includes (mostly) OECD countries range from 1990 to 2019 are analyzed. The major findings are as follows. First, based on OECD countries samples, female labor force participation is positively associated with the fertility rate, which implies that women's labor force participation does not lead to a reduction in fertility rate. Second, the length of paternity leave is positively associated with fertility rate whereas the direction is the opposite for the relationship between the length of maternity leave and fertility rate. This is attributed to the possibility that a longer period of maternity leave incurs the a higher opportunity cost of earning income, which leads to a reduced fertility rate. Third, countries with higher gender inequality index tend to have a higher fertility rate. Similarly, countries with higher gender equality value have a lower fertility rate. When the gender equality value is devideed into three sub-categories, education, politics, and employment, the gender equality value in education is the only sub-category which is negatively associated with the fertility rate. This study confirms that female labor force participation may not be a contributing factor in the lowering of fertility rate but instead can be positively associated with the fertility rate. Also, the results show that family policies or gender equality values can be significantly affect fertility rate.

• 건강소식
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• v.35 no.10
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• pp.28-29
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• 2011

가을도 중턱에 닿았다. 파란 하늘, 황금빛 들판, 알록달록 단풍과 낙엽, 시원한 날씨 덕분에 현장학습, 가율소풍 등 아이들의 야외활동이 유독 많은 10월이다. 그런 만큼 아이들 건강에 신경 써야 한다. 가을마다 잊지 않고 찾아오는 감기, 가을철 알레르기 등 아이들은 질병에 노출되어 있기 때문이다.

• The tire
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• s.119
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• pp.40-51
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• 1985

본고는 84년 일본 Exxon Chemical 에서 조사, 발표한 전세계 지역별 타이어 수급실적 및 장기예측을 요약정리한 것이다. 특히 본자료에서는 타이어산업의 년간평균증가율의 장기전망과 타이어 수출입동향, 또 Radial 타이어와 Tubeless 타이어의 생산비율 등을 추정분석하였다.<편집자주>

• Korean Journal of Logic
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• v.19 no.2
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• pp.145-184
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• 2016

Williamson(1994) proved incompatibility of Gab Theory and Tarski T-schema. But this does not means that Gab Theory could not involve intuition on truth that is expressed by T-schema. I will show that Gab Theory and mutual entailment of 'p' and 'it is true that p'(p⊨T

and T

⊨p) are compatible. It will draw that Gab Theory can involve minimal intuition on truth. After all what I want to reveal is logical space for Gab Theory through the compatibility of the mutual entailment and negation of the Principle of Bivalence. To prove the compatibility, I will present a consequent relation which should be accepted whenever we accept Gab Theory and demonstrate Gab Theory and the mutual entailment imply following two thesis; 1) not-T

and T are not equivalent. 2) p entails T

but not-T

does not entails not-p.